Apparatus for mixing and proportioning materials



E. P. HALLIBURTON APPARATUS FOR MIXING AND PROPORTIONING MATERIALS Filed Sept. 16, 1926 ff/M Y M 1 i i w I Gttoz n a Patented New. 15, 19 27.

NITED. STATES o A ,1",649 ,062 PATENT OFFICE.

nnnn PALMER fiannrnun'ron, or nos Antennas, CALIFORNIA.

APPARATUS ron mrxme AND rnoronrromxe MA'rn'niAL's. y L

Application filed September 16, 1926. Serial No. 135,802;

This invention relates to an apparatus for mixing solid materials with liquids, and refers particularly to an apparatus for mixsolid materials with liquids when it is desired to rapidly form the mixture and deliver the same from-the mixing zone.

The present invention has particular value in mixing materials together which form a mixture of unstable composition such as a mixture of cementing materials, which mixture operates to set, or a; mixtureof chemical ingredients which operate to combine together after their admixture and must be llh used immediately after mixing. As an example of the last class of materials, the invention is adapted for the production of fire quenching materials. particularly of the foam type in which difierent solids and liquids are added together which, at the time oi mixing, rapidly form a large body of foam, which for use must be immediately and rapidly removed from the mixing zone.

Another example or the character of mixed materials which the inventionis particularly adapted to produce is mixtures of cementing materials such as cement, water, and a quick hardening solution, or cement, water, and diatomaceous earth or other like materials which are unstable after being ad mixed and should be rapidly transported to the place of use.

= Lterials to the mixing zone, and

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A particular object of the present invention is to'provide an apparatus for mixin the above type of materials which is adapted to provide not only for the rapid mixing oi the materials, continually supplying the ma" the rapid removal of the materials from the mixing zone. but is also adapted to supply the materials in carefully measured or regulated proportions in order to accurately control the percentages of materials in the. formed mixture. H

This invention is characterized by the proisionof means'by which two liquid supplies can be placed under pressure and de livered to the, mixing zone and accurately the depositing of a solid measured wheresaid-liquids are caused to form one or more high velocity streams together with material adjacent said stream or streams, whereby the properly proportioned liquids operate'through the formation of the high velocity stream to form a region v01E suction operative to draw in the correct percentage of the solid in predetermined proportions kinds so as to provide for the separate ejection of said solid material into a single mixmg zone, wherein the total materials are thoroughly admixed together and rapidly ejected to a place of use; or the invention may comprise a form in which a. single solid material is fed into a'mixing zone by the action of one or more high velocity streams of liquid, which may be formed from two or more separately measured sources of the same or difierent liquids; or the invention may embody a form in which a plurality of different deposits of solid material'of like or different character are acted upon by two or more high velocity streams of liquid of like or diiierent. character in which the quantities of the liquids supplied'to the streams are positively proportioned-so that accurate control is obtained of the entire materials died into a'single mixing zonefrom which the admixture may be place of use.

This invention, together with various ob- 'jects and advantages thereof will best be rapidly ejected to a understood from a description of certain preferred apparatus embodying the inventron.

panying drawings, which illustrate preferred examples of apparatus embodying the present invention. in which;

Figure 1 is a somewhat diagrammatic view in elevation and partially in section of a form of apparatus formixing a single solidmaterial with two ormore liquids;

Figure 2 is a similar view of a modified form of an apparatusfor mixing a single solid material with two or, more liquids in which the separate .liquidsare supplied to the mixing zone in separate high velocity streams; and I Figure 3 is a further modified form of the invention for use where it is desired to mix a plurality of difierent supplies of solid material with a single or a plurality of liquid supplies; v a

Referring first to Figure 1 of the drawings, the apparatus there illustrated com- Reference is therefore made to the accom- I pipe 7 through which'the admixed mate-- rials may be passed to the point of use.

The rear end of the T-pipe 4 is provided with a bushing 8 having an opening 9 through which is extended a jet pipe 10, which jet pipe 10 has its outlet 11 positioned so that a high velocity stream of liquid formed thereby can produce a region of suction on the outlet from the hopper 2. The

jet pipe 10 is indicated as connected to a supply line 12, which in turn is connected to two branch supply lines 13 and 14, provided the pumps 17 an and 14, a For examp e, said pumps may be of the respectively with the valves 15 and 16. Said lines 13 and 14 are the outlet lines from pumps 17 and 18, respectively. Said pumping lines 17 and 18 are preferably suitably connected together so that they are necessarily driven at predetermined speed ratios and may constitute separate cylinders of the same pump. Both of the pumping lines 17 and 18 should be of the positive displacement tvpe so that in accordance with a definite relation of speed therebetween, they will positively deliver to their discharge lines 13 redetermined ratio of liquids.

plun er ty e or the ear ty e of pumps. The um s '17 and 18 are indicated as provide wit inlet lines 19 and 20, respectively, which may lead to a single source of supply or to supplies of separate liquids.

Theappar'atus thus described provides an exceptionally etticient means for admixing solid materials with liquids and rapidly ejecting the same to the place of use. For example, in case it is desired to mix hydraulic cement with water and a hardening solution, such as a solution of calcium chlorid, in carefully regulated proportions, the solid material, such as the dry comminuted cement, is ,(placed in the hopper 2 and 18 are separately connected to a water supply and a supply of the quick hardening solution. The relative displacement of the pumps 17 and 18 are so esigned that in consequence of their interconnection, it will positively draw the correct proportions of water and quick hardening solution and deliver the same to the jet 10. The combined solutions are ejected from the jet 10 in the form of a high velocity stream which provides a region of suction for drawing the cement from the hopper 2 into the mixing chamber 3, wherein the energy of the stream of liquid operates to thoroughlyadmix the cement withthe liquid The mixing ingredients and immediately eject the same from the mixing chamber 3 through the swedge 6 to delivery line 7 to the place of use.

Similarly, when for example, it is desired to form a fire fighting foam, a solution of glue, tannin, or other material adapted for forming a tenacious foam, may be supplied .10 one of the pumps 17 and 18, and an acid supplied to the other pump 18, it being un-' derstood that the relative displacements of the pumps should be properly proportioned that said pumps must positively draw in the correct proportions of these liquids, and the hopper 2 may be filled with a carbonate for forming carbon dioxide with the liquid ingredients. In such case, the highvelocity stream of liquid discharging from the jet pipe 10 will positively draw the comminuted solid carbonate into the mixing chamber 3 where the same will be thoroughly admixed with the liquid materials and be rapidly ejected therefrom through the delivery line 7 so that the resulting foam formed thereby may be e'ected upon the place where it may be needed.

Now, referring to the form of the invention illustrated in Figure 2 of the drawings, this form of the apparatus comprises a hopper 2, the discharge end of which communicates with a mixing chamber 3 formed by a T-pipe 4. The forward end of the T-pipe 4; is connected with a tapered swedge '6 andhence to a discharge line or pipe 7. The rear end of the T-pipe 4 is provided with a bushing 8 through which extends a jet pipe 10 connected by a line 12 having a'valve 15 with a pump 17. Said pump 17 is indicated as having an inlet line 19 which leads to a source of liquid supply (not shown). The apparatus is also illustrated as provided with a supplemental jet pipe 21, positioned within the swedge 6 and discharging toward the discharge line 7', said jet pipe 21 entering through the lower side of the mixing chamber, as indicated at 22,

and is connected by a line 14 provided with a valve 16 and with. a pump 18. Said pump is indicated as having an inlet line 20, but it is understood that'it should be connected with the supply of liquid materials (not'shown).

The pumps 17 and 18 are likewise to be of the positive displacement type and suitably interconnected together so that the ratio of their relative displacements is constant.

The apparatus thus described may likewise be employed for mixing a single solid material with one or a plurality of liquids.

The form of the invention shown in Figure 2 may be employed for various purposes, one liquid being supplied from a pump 17' and Ill another liquid or a separate source of the same liquid being supplied from the amp 18. These two different supplies of iquid will always be passed to the-mixing zone v13 of the apparatus under carefully measured proportions. The liquid supp s will issue from the jet pipes and 21 in the form of high velocity streams which, through the region of suction formed thereby, Wlll swedge 6 to a delivery line 7". Thereardraw in solid material from the hopper2 into the mixin zone and thoroughly commingle said so id material with the liquid and eject the same through the pipe 7 to the point of use.

The form of the invention shown in Figure 3 comprises a means for holding a plurality of deposits of solid material, which means is preferably indicated as provided by a hopper 2 having a central diaphragm 23 dividing the-hopper into two separate compartments discharging from a common outlet at the lower end of the hopper. The hopperis connected with a mixing chamber 3 formed by a "it-pipe 4:. The T-pipe 4 connects with a end of the T-pipe 49 is provided with a bushing 8 through which extends a jet pipe 10. The jet pipe 10 is indicated as connected through a line 12" with a pump 17 having an inlet line 19". i p

There is also preferably provided a jet pipe for each compartment of the hopper 2", said "jet pipes being indicated at 23 and 24 vrespectively and are disposed to discharge downwardly through the outlets of said compartments. Said jet pipes are connected respectively to the lines 25 and 26 provided with the valves 27 and 28, respectively. The lines 25 and 26 are respectively connected with the pumps 29 and 30 which are respectively connected with in ct lines 31 and 32. All of the pumps 17, 29 and 30 should be of the positive displacement type and connected together so that in use uid supplied by itely predetermixture-desired and the characteristics of the *mixedmaterials. As an example of a process as carried out in the apparatus of Figure 3, when itis desired to form a cementing composition of diatomaceous-earth, cement, water or other liquid, such as a quick hardening material, waterproofing solution, or

the like, the cement may be placed in one compartment of the hopper 2 and the diatomaceous earth in comminuted term in the other compartment of the hopper 2". The.

17, 29 and 30 may all be a single liquid supply, such the pumps 29 and 30 of the different. pumps connected with as water, with correct relative 'ulds pumped thereby.

displacements so as to draw the proper relative proportions of cement I and water into the mixing zone, or diflerent liquid supplies may be provided for the different jets such, for example,

solution to hot jets 23 and 24, one water proofing solution may be supplied to the jet 23*, a quick hardenin solution to the jet 24, and water or other iquid for forming the cementing material supplied to the jet 10".

It is understood that in each of the differentforms of the mixing apparatus herein described, the li uids sup lied to the diflerent jets may be on y semi-fliiid andcomprise solutions of solid materials therein. As an as providing water to the 'et 10 and a waterproofing example of one form of the invention, a previously formed fluid pumpable cement grout may be supplied to the mixin zone fromone of the jets for the purpose 0 enriching said cement grout with cement sand, gravel, or both from the, hopper for accurately proportioning or enriching the said cement grout with sand, gravel or both. 4 I

It is alsoiunderstood that in some forms of the invention, for exam le, in each of the forms herein described, tli ployed jets for discharging into the material after the mixing has been accomplished and preferably at the point where the=mixture is to be used, in which case said jet would be supplied with liquid from a pump of the positive action type driven in synchronism with the pump supplying-the fluid to the mixing jet.

While I have described the preferred forms of the invention, itis understood that the invention ma take other forms, and this invention inclu es all such modifications, changes and substitutions as come within the scope of the appended claims.

I claim:

1. An apparatus for mixing and proportioning solid with liquid materials comprising' a feed hopper for the solid plurality of jet pipes positioned to discharge by the outlet of said teed hopper, a plurality ere may. be em- I material, a

of positive action pumping means connected and means connecting the pumping means by to positively determine 2. In a paratus for mixing solid materials withliquids which comprises a plurality of separate means for containing solid mate-. rial, a mixing chamber into whlch said means discharge, atleast one jet pipe positioned to discharge b plurality 0 positive acting pumpin means connected to said jet pipe means an means for positively connecting said pumping means together whereby said pumping means will draw liquidsin predetermined proportions. I

3. A mixer for admixing solid with'liquid materials comprising a plurality of containthe ratio of liq-,

the outlets of said means, and a ers for holding different solid materials, a pipe means, and means interconnecting. said mixing chamber into which said containers positive acting pumping means whereby the discharge, a plurality of jet pipe means poliquids pumped thereby willhe in predetersitioned to discharge by the outlets of said mined ratios. 5 containers to draw solid material into said Si ed at Los Angeles, California, this mixing chamber, a plurality of positive act- 2nd ay of August, 1926. ing pumping means connected to said jet ERLE PALMER HALLIBURTON. 

